Andeew hajstseh



(No Model.)

A. HANSEN.

BRAKE LOOK. a No. 381,010. Patented Apr. 10,1888.

NuP'ETERS. mmmm mr. wzlllinglol a c I I UNITED "STATES PATE T OFFicE.

ANDREW HANSEN, orR oINE, WISCONSIN, ASSIGNOB or ONE-THIRD rro CHARLES P. Jo eENsEn, or SAME PLACE- I LOCK.

s ecimen-101v forming part of Letters Patent 170381.010, dated A ia 10, 1888." I

' Application filed December 27, 1887. Serial No. 255,032. (No model.) I I To aZZ whom, itmay concern).-

Be it known that I, ANDREW HANSEN, a citizen of the United States, and'a resident of Racine, in the county of Racine andState of Wisconsin, have invented certain new and useful Improvements in Brake-Locks; and I do hereby declare that the following is a full, clear,- and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, refer- Figure 1 is a side view of as much of the brake mechanism of avehicle as is necessary to illustrate the operation of my improved brake-lock; and Fig. Z'lS a similar view showing the lock disengaged and the lever free to be tilted, Fig. lshowing thelockengagingthe rail. t

The same numerals of reference indicate the same or corresponding parts in all the figures. My invention" has relation to brake-locks;

. and it consists in the improved construction and combination of parts of such a lock in i which the brake-lever is held in position by a' pivoted and weighted cam clamping a segmental rail, as hereinafter more fully described and claimed. p I Y In the accompanying drawings, the numeral 1 indicates the side of the vehicle upon which the brake-lever 2 is pivoted at its lower end, having the brake-rod 3 suitably pivoted to it..

The lever ,is provided with a downwardlyprojecting lip, 4, which straddles a segmental rail or bar, 5, which is suitably supported by means of posts 6 from the side of the vehicle,

, the lever rocking between the segmental bar and the side of the vehicle.

'bar has its center in the fulcrum of the brake- The segmental lever.v I I A'n angularly-bent arm' or cam, 7 is pivoted with its lower end upon the outer side of the brake-lever, and has its cam-face 8 in contact with the inner edge of the segmental rail or bar, and the forwardly-projecting portion of the cam-arm is provided with. aweight, 9, and has the rod 10 pivoted to it, which is pivoted to the rectangularly-bent lock-handle 11 at its .betilted back.

.in this improved lock the holding'power of accumulations of mud or dirt, preventing'the engage spaces between cogs.

the upper end of the brake-lever. v

The cam-arm plays between the lever and armwill tilt the cam-arm forward, bringing it in contact with the segmental rail or bar,

against the lower concave edge of which it will 4 bear'a'nd bite, so that any rearward pull or J tilt upon the brake-lever will merely serve to lock the cam against the bar, causing it'to clamp the same, more firmly. I i

When it is desired to release the brake-lever,,the. bent handle at the upper end of the lever is tilted inward toward thelever, raising the forward portion of the loam-arm and tilting the saidarm down and away from contact with'the rail or bar, so thatthe lever may The lever may at all times be tiltedi'for- -ward,as the .cam-arm tilts freely rearward, 7o

but cannot be tilted forward without bearing harder with its cam-face against theedge of the segmental rail or bar. p The cam-face and the lower edge of the seg mental bar or rail are preferablyformed with 75. i

serrations, as shown in the drawings, for the purpose of efi'ectin'g'a more perfect frictional resistance; but these serrations may'bedispensed with, if desired. v I

It will be seen that by using this look the construction .of the brake and lock jwill be considerably simplified over the construction? of theusual brake-lever and lock with its sliding or tilting bolt engaging acogged rack, and I thelock will not be impaired or affected-by -any collection of mud or dirt upon the railfor bar, .while a cogged rack or rail will'be obstructed to'the free engagement of the bolt by bolt from entering the notches between the cogs. I y In this construction of lock the cam will. clean all accumulated mud or dirt off from the bar, and then bite as firmly or possibly firmer than upon a clean bar, there being no bolt to 'Having thus described my invention, I claim upper end, the said, handle being pivoted at 50 and desire to secure by Letters Patent of the weighted arm, and a rod pivoted to the said United States arm at its lower end and having a tilting han- In a brake-1ock, the combination of a lever dle at its upper end, as shown and described. having the brake-rod pivoted to it, a segmen- In testimony that I claim the foregoing as my 5 tal rail or bar concentric with the fulcrum of own I have hereunto affixed my signature in 15 the lever and having its lower concave edge presence of two witnesses.

serrated, a cam pivoted upon the lever at its ANDREW HANSEN. lower end and bearing with its serrated cam- Witnesses: face against the lower edge of the segmental A. OHR. PETERSON,

r0 bar or rail, and having a forwardly-extending J. W. JOHNSON. 

